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Ammonium molybdate

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Identification
Molecular formula
(NH4)6Mo7O24 · 24H2O
CAS number
12054-85-2
IUPAC name
ammonia;molybdenum;tetracosahydrate
State
State

Ammonium molybdate is typically found in a hydrated, solid state. It features as free-flowing powdery crystals at room temperature.

Melting point (Celsius)
190.00
Melting point (Kelvin)
463.15
Boiling point (Celsius)
100.00
Boiling point (Kelvin)
373.15
General information
Molecular weight
1870.01g/mol
Molar mass
1 870.0100g/mol
Density
3.7800g/cm3
Appearence

Ammonium molybdate appears as a white or light green, crystalline solid. It is often described as having an aesthetically uniform and powdery texture. Occasionally, it can appear in solution as colorless or slightly greenish.

Comment on solubility

Solubility of Ammonium Molybdate Tetracosahydrate

The compound ammonium molybdate tetracosahydrate, represented by the formula (NH4)6Mo7O24 · 24H2O, exhibits notable solubility characteristics that are essential for various applications in the chemical industry.

  • Aqueous Solubility: This compound is highly soluble in water. It dissolves to produce a clear solution, which is advantageous for its use in analytical chemistry and as a reagent.
  • Solvent Dependence: While it is well soluble in water, its solubility may vary in organic solvents, where it shows significantly lower solubility.
  • Temperature Effects: The solubility of ammonium molybdate increases with an increase in temperature. Heating the solution can enhance the dissolution rate, aiding in applications that require concentrated solutions.

When considering practical usage, it is crucial to note that the solubility of this compound in water leads to the formation of a saturated solution under certain conditions. As a result, *undersaturation* can be achieved easily, ensuring that the compound can be utilized effectively without precipitating out of solution.

In conclusion, the solubility of (NH4)6Mo7O24 · 24H2O plays a pivotal role in its functionality and utility, making it an important compound in various chemical processes.

Interesting facts

Interesting Facts About Ammonium Molybdate Tetracosahydrate

Ammonium molybdate tetracosahydrate is a fascinating compound primarily known for its role in various chemical and industrial applications. Here are some notable aspects of this compound:

  • Essential Nutrient Source: Ammonium molybdate is often utilized as a source of molybdenum, an essential micronutrient for plants. Molybdenum plays a critical role in nitrogen fixation, which is vital for plant growth and development.
  • Catalytic Properties: This compound is used as a catalyst in organic chemistry. Molybdenum-based catalysts have shown to be effective in various chemical reactions, including oxidation and hydrocracking processes.
  • Colorimetric Analysis: Ammonium molybdate is often employed in analytical chemistry, particularly in colorimetric methods to determine the concentration of phosphorus in samples. The formation of a yellow complex allows for easy quantification.
  • Hydration State: The "tetracosahydrate" part of its name indicates that this compound contains 24 molecules of water for every formula unit. This hydration contributes to its stability and solubility in water.
  • Historical Significance: Molybdenum was discovered in the 18th century, and compounds like ammonium molybdate have been crucial in advancing our understanding of this significant element in metallurgy and agriculture.

As a compound with diverse applications and a vital role in both biological and industrial realms, ammonium molybdate tetracosahydrate exemplifies the complexity and utility of chemical compounds in our everyday lives.

Synonyms
azane;molybdenum;tetracosahydrate
ammoniumheptamolybdate
SCHEMBL59674
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